public class Test10 {
    public static void main(String[] args) {
        int distanceKM = 14;
        // 千米转换为英里
        double distanceMile = distanceKM / 1.6;
        double timeMin = 45.5;
        // 分钟转换为小时
        double timeHour = timeMin / 60;
        System.out.printf("%.2f 英里每小时" , distanceMile / timeHour);
    }
}
